package com.calvin.springcloud;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.hystrix.EnableHystrix;
import org.springframework.context.annotation.Bean;

import com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet;

/**
 * Hello world!
 *
 */
@SpringBootApplication
@EnableEurekaClient // 将该服务注册到Eureka中
@EnableHystrix
public class ProviderUserApp8001 {

	public static void main(String[] args) {
		SpringApplication.run(ProviderUserApp8001.class, args);
	}

	/**
	 * 此配置是为了服务监控而配置，与服务容错本身无关，springcloud升级后的坑
	 * ServletRegistrationBean因为springboot的默认路径不是"/hystrix.stream"，
	 * 只要在自己的项目里配置上下面的servlet就可以了
	 */
	@Bean
	public ServletRegistrationBean getServlet() {
		ServletRegistrationBean registrationBean = new ServletRegistrationBean(new HystrixMetricsStreamServlet());
		registrationBean.setLoadOnStartup(1);
		registrationBean.addUrlMappings("/actuator/hystrix.stream");
		registrationBean.setName("HystrixMetricsStreamServlet");
		return registrationBean;
	}
}
